CN1923904A - Composite modified fiber and preparation method thereof - Google Patents
Composite modified fiber and preparation method thereof Download PDFInfo
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- CN1923904A CN1923904A CN 200610111240 CN200610111240A CN1923904A CN 1923904 A CN1923904 A CN 1923904A CN 200610111240 CN200610111240 CN 200610111240 CN 200610111240 A CN200610111240 A CN 200610111240A CN 1923904 A CN1923904 A CN 1923904A
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Abstract
The invention discloses a composite modifier fiber, which consists of 89% wooden cellulose and 11% rock modifier, wherein the pH value of wood cellulose is 7.5+-1.0 with length less than 6mm and (18+-5)% ash; the rock modifier concludes 0.65% saturated hydrocarbon, 0.91% aromatic hydrocarbon, 35.89% non-hydrocarbon and 62.55% asphaltene. The manufacturing method comprises the following steps: grinding roughly and finely; sieving; weighing; separating; blending; drying; weighing; blending with disperser and rock modifier.
Description
Technical field
The present invention relates to a kind of composite modified fiber and production method thereof, be mainly used in the express highway pavement engineering, add in right amount in the bituminous concrete in proportion, original matrix pitch performance is changed, the fiber of uniformly dispersing presents tridimensional network in bituminous concrete.Because the effect of little stiffening web effect, oil absorptiveness and the lithology properties-correcting agent of conjugated fibre improves the hardness of fiber asphalt concrete and wear resistance, has kept bituminous toughness simultaneously.Changed the performance of conventional bituminous concrete pavement.
Background technology
Original bituminous concrete modification mode be earlier with behind the asphalt modification again with aggregate blending, have that hardness is low, a problem of wear resistance and poor toughness.
Summary of the invention
Purpose of the present invention just provides a kind of composite modified fiber and production method thereof, and the hardness that prior art exists is low to solve, the problem of wear resistance and poor toughness.
Technical scheme of the present invention is: a kind of composite modified fiber, this conjugated fibre constitute protolignin's Mierocrystalline cellulose and lithology properties-correcting agent, the part by weight of its formation is 85%～95 and 15%～5%, is preferably 89% and 11%.
Described protolignin fiber is that pH value 7.5 ± 1.0, length＜6mm, oil absorbency are the protolignin's fiber of (70 ± 10) % or the wood fibre of other identical standards greater than 5 times of deadweights, ash oontent (18 ± 5) %, 0.15mm qi of chong channel ascending adversely sieve percent of pass; Described lithology properties-correcting agent is a kind of lithology properties-correcting agent that contains stable hydrocarbon 0.65%, aromatic hydrocarbons 0.91%, nonhydrocarbon 35.89%, bituminous matter 62.55%.
Comprise following processing step: with the protolignin raw material through coarse reduction, smartly pulverize, sieve, weighing, separation, mixing, drying, weighing get described protolignin Mierocrystalline cellulose; Mix with an amount of dispersion agent, high temperature agent and the weighing of lithology properties-correcting agent and with above-mentioned protolignin's Mierocrystalline cellulose respectively simultaneously, promptly obtain described composite modified fiber.
The present invention has following characteristics:
(1) changed the traditional asphalt modification mode, original mode be earlier with behind the asphalt modification again with aggregate blending, composite modified fiber then is that properties-correcting agent is added in the fiber, in the mix process with the matrix pitch modification, the technology breviaty, benefit improves, and makes original finished product compound cost reduce nearly hundred yuan.
(2) high temperature resistance.Improve anti-softening, the rutting resistance in road surface.
(3) antistripping.Anti-cracking performance when having improved winter low temperature.
(4) anti-heavy duty.The road surface friction of composite modified fiber asphalt concrete construction improves, and has increased road surface rainy day non-skid property, has reduced the shearing strain on road surface simultaneously, has improved anti-heavily loaded ability.
(5) anti-aging.Physics chemical action between composite modified fiber and the bituminous concrete has improved the endurance quality and the fatigue resistance of concrete road surface, is specially adapted to bridge floor and free settling road surface.Road surface expected service life prolongs and had increased by 3～5 times than originally, has reduced highway line service amount, and returns of investment significantly improve.
Description of drawings
Fig. 1 is a technological process of production synoptic diagram of the present invention.
Embodiment
Conjugated fibre of the present invention constitute protolignin's Mierocrystalline cellulose and lithology properties-correcting agent, the part by weight of its formation is 85%～95 and 15%～5%, is preferably 89% and 11%.
Described protolignin fiber is that pH value 7.5 ± 1.0, length＜6mm, oil absorbency are the protolignin's fiber of (70 ± 10) % or the wood fibre of other identical standards greater than 5 times of deadweights, ash oontent (18 ± 5) %, 0.15mm qi of chong channel ascending adversely sieve percent of pass; Described lithology properties-correcting agent is a kind of lithology properties-correcting agent that contains stable hydrocarbon 0.65%, aromatic hydrocarbons 0.91%, nonhydrocarbon 35.89%, bituminous matter 62.55%.
Referring to Fig. 1, the production method of conjugated fibre of the present invention comprises following processing step:
Above-mentioned processing step is except that drying process, and whole technology is all carried out under normal temperature, normal pressure.In drying machine 8, protolignin's Mierocrystalline cellulose control drying temperature is 85 ℃, and be 2h time of drying.The major ingredient of high temperature agent 13 is SiO
2, its resistance to elevated temperatures is 850 ℃.
Add an amount of composite modified fiber in proportion in bituminous concrete, original matrix pitch performance is changed, the fiber of uniformly dispersing presents tridimensional network in bituminous concrete.Because the effect of little stiffening web effect, oil absorptiveness and the lithology properties-correcting agent of conjugated fibre improves the hardness of fiber asphalt concrete and wear resistance, has kept bituminous toughness simultaneously.Compound viscosity after the improvement improves, and is easier to dominant discharge, makes compound have better stability.Composite modified fiber is applied to the express highway pavement engineering.
Claims (5)
1. composite modified fiber is characterized in that: this conjugated fibre constitute protolignin's Mierocrystalline cellulose and lithology properties-correcting agent, the part by weight of its formation is 85%～95 and 15%～5%, is preferably 89% and 11%.
2. composite modified fiber according to claim 1 and 2 is characterized in that: described protolignin fiber is that pH value 7.5 ± 1.0, length＜6mm, oil absorbency are the protolignin's fiber of (70 ± 10) % or the wood fibre of other identical standards greater than 5 times of deadweights, ash oontent (18 ± 5) %, 0.15mm qi of chong channel ascending adversely sieve percent of pass; Described lithology properties-correcting agent is a kind of lithology properties-correcting agent that contains stable hydrocarbon 0.65%, aromatic hydrocarbons 0.91%, nonhydrocarbon 35.89%, bituminous matter 62.55%.
3. the production method of the described composite modified fiber of claim 2 is characterized in that: comprise following processing step: with protolignin's raw material through coarse reduction, smartly pulverize, sieve, weighing, separation, mixing, drying, weighing get described protolignin Mierocrystalline cellulose; This kind protolignin Mierocrystalline cellulose with 74.76% and 6.23% dispersion agent (CaSO
42H
2O), 8.01% high temperature agent (SiO
2) and 11% lithology properties-correcting agent weighing mix, promptly obtain described composite modified fiber.
4. production method according to claim 3 is characterized in that: with described composite modified fiber compression packing.
5. production method according to claim 4 is characterized in that: described protolignin Mierocrystalline cellulose drying step carries out in drying machine, and drying temperature is 85 ℃, is 2h time of drying; Described coarse reduction, smart pulverising step adopt meal machine, refined grinder respectively; Describedly sieve, separation, mixing step adopt powder shifter, separator, mixing tank respectively; Described weighing step all adopts meter electronics; The described step that mixes adopts mixing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610111240 CN1923904A (en) | 2006-08-17 | 2006-08-17 | Composite modified fiber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610111240 CN1923904A (en) | 2006-08-17 | 2006-08-17 | Composite modified fiber and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1923904A true CN1923904A (en) | 2007-03-07 |
Family
ID=37816739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610111240 Pending CN1923904A (en) | 2006-08-17 | 2006-08-17 | Composite modified fiber and preparation method thereof |
Country Status (1)
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| CN (1) | CN1923904A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096835B (en) * | 2007-05-29 | 2011-08-31 | 南京林业大学 | Lignocellulose material for road and method for making same |
| CN102452791A (en) * | 2010-12-24 | 2012-05-16 | 江苏奥米建材科技有限公司 | Lipophilic mineral composite fibers and preparation method thereof |
| CN103755190A (en) * | 2014-01-06 | 2014-04-30 | 同济大学 | Regenerated cellulose fiber and preparation method thereof |
| CN111379185A (en) * | 2018-12-28 | 2020-07-07 | 黑龙江惠美佳制药有限公司 | Lignocellulose material for road building and preparation method thereof |
| CN117105555A (en) * | 2023-08-29 | 2023-11-24 | 天成垦特莱赞皇科技有限公司 | Composite fiber for asphalt pavement and preparation method thereof |
-
2006
- 2006-08-17 CN CN 200610111240 patent/CN1923904A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096835B (en) * | 2007-05-29 | 2011-08-31 | 南京林业大学 | Lignocellulose material for road and method for making same |
| CN102452791A (en) * | 2010-12-24 | 2012-05-16 | 江苏奥米建材科技有限公司 | Lipophilic mineral composite fibers and preparation method thereof |
| CN103755190A (en) * | 2014-01-06 | 2014-04-30 | 同济大学 | Regenerated cellulose fiber and preparation method thereof |
| CN103755190B (en) * | 2014-01-06 | 2015-10-28 | 同济大学 | A kind of regenerated cellulose fibre and manufacture method thereof |
| CN111379185A (en) * | 2018-12-28 | 2020-07-07 | 黑龙江惠美佳制药有限公司 | Lignocellulose material for road building and preparation method thereof |
| CN117105555A (en) * | 2023-08-29 | 2023-11-24 | 天成垦特莱赞皇科技有限公司 | Composite fiber for asphalt pavement and preparation method thereof |
| CN117105555B (en) * | 2023-08-29 | 2024-03-22 | 天成垦特莱赞皇科技有限公司 | Composite fiber for asphalt pavement and preparation method thereof |
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| PB01 | Publication | ||
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Open date: 20070307 |